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Code Inspection: Duplicate branch in alternation

Last modified: 13 May 2022

Configure inspections: Settings | Editor | Inspections

Show intention actions: AltEnter

Reports duplicate branches in a RegExp alternation. Duplicate branches slow down matching and obscure the intent of the expression.

Example:

(alpha|bravo|charlie|alpha)

After the quick-fix is applied:

(alpha|bravo|charlie)

New in 2017.1

Suppress an inspection in the editor

  1. Place the caret at the highlighted line and press AltEnter or click the Intention action icon.

  2. Click the arrow next to the inspection you want to suppress and select the necessary suppress action.

See also

Procedures